/* ==========================================================================
   厦门鸿达兴科技有限公司 官网 全站样式表
   品牌色：navy #0F2044 / 金 #C8A55A / ivory #F5F2EC
   设计语言：商务科技蓝 · 直角（radius ≤ 4px）· 克制专业
   ========================================================================== */

/* ---------- 变量与基础 ---------- */
:root {
  --navy: #0F2044;
  --navy-deep: #0A1730;
  --navy-soft: #1B3260;
  --gold: #C8A55A;
  --gold-dark: #B08F43;
  --ivory: #F5F2EC;
  --white: #FFFFFF;
  --ink: #1C2028;
  --muted: #766E64;
  --line: #E3DDD2;
  --line-dark: rgba(255, 255, 255, 0.14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--ink);
  background: var(--ivory);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 通用排版 ---------- */
.section { padding: 72px 0; }
.section--white { background: var(--white); }
.section--navy { background: var(--navy); color: var(--white); }

.section-head { max-width: 760px; margin: 0 auto 48px; text-align: center; }
.section-head--left { margin-left: 0; text-align: left; }

.kicker {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--gold-dark);
  font-weight: 700;
  margin-bottom: 12px;
}
.section--navy .kicker { color: var(--gold); }

.section-title {
  font-size: 30px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 14px;
}
.section--navy .section-title { color: var(--white); }

.section-sub { color: var(--muted); font-size: 16px; }
.section--navy .section-sub { color: rgba(255, 255, 255, 0.72); }

.gold-bar {
  width: 44px;
  height: 3px;
  background: var(--gold);
  margin: 16px auto 0;
}
.section-head--left .gold-bar { margin-left: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 13px 34px;
  font-size: 15px;
  font-weight: 700;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  text-align: center;
}
.btn--gold { background: var(--gold); color: var(--navy); }
.btn--gold:hover { background: var(--gold-dark); color: var(--white); }
.btn--outline { background: transparent; color: var(--white); border-color: rgba(255, 255, 255, 0.5); }
.btn--outline:hover { border-color: var(--gold); color: var(--gold); }
.btn--navy { background: var(--navy); color: var(--white); }
.btn--navy:hover { background: var(--navy-soft); }
.btn--ghost { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn--ghost:hover { background: var(--navy); color: var(--white); }
.btn--sm { padding: 9px 22px; font-size: 14px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  border-bottom: 1px solid var(--line-dark);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 1px;
}
.brand__mark {
  width: 34px;
  height: 34px;
  border: 2px solid var(--gold);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 15px;
  font-weight: 700;
}
.brand__name small {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 2px;
  line-height: 1.3;
}

.nav__menu { display: flex; align-items: center; gap: 6px; }
.nav__link {
  position: relative;
  display: block;
  padding: 24px 14px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.2s;
}
.nav__link:hover, .nav__link.is-active { color: var(--gold); }
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  background: var(--gold);
}

/* 产品下拉（桌面端 hover） */
.nav__item--dropdown { position: relative; }
.nav__item--dropdown:hover .nav__link { color: var(--gold); }
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 210px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 2px solid var(--gold);
  border-radius: 0 0 2px 2px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}
.nav__item--dropdown:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown a {
  display: block;
  padding: 11px 18px;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}
.dropdown a:last-child { border-bottom: 0; }
.dropdown a:hover { background: var(--ivory); color: var(--navy); font-weight: 700; }

.nav__cta { margin-left: 12px; }

/* 汉堡按钮（移动端） */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 0 auto;
  transition: transform 0.2s, opacity 0.2s;
}
.nav__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 首屏 Hero ---------- */
.hero {
  background: var(--navy);
  color: var(--white);
  padding: 64px 0 84px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  /* 纯CSS网格装饰 */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.35;
  pointer-events: none;
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.hero__tag {
  display: inline-block;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 3px;
  padding: 8px 18px;
  border-radius: 2px;
  margin-bottom: 30px;
}
.hero__title {
  font-size: 40px;
  line-height: 1.35;
  font-weight: 700;
  margin-bottom: 20px;
}
.hero__title em { font-style: normal; color: var(--gold); }
.hero__sub {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 36px;
  max-width: 520px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; }
.hero__trust {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  border-left: 2px solid var(--gold);
  padding-left: 12px;
}

/* Hero 右侧纯CSS界面示意 */
.hero__visual {
  background: var(--navy-deep);
  border: 1px solid var(--line-dark);
  border-radius: 4px;
  padding: 18px;
}
.mock {
  background: var(--ivory);
  border-radius: 4px;
  overflow: hidden;
}
.mock__bar {
  display: flex;
  gap: 6px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
.mock__dot { width: 9px; height: 9px; border-radius: 2px; background: var(--line); }
.mock__dot:first-child { background: var(--gold); }
.mock__body { padding: 18px; }
.mock__row { display: flex; gap: 10px; margin-bottom: 12px; }
.mock__bubble {
  padding: 9px 13px;
  font-size: 12.5px;
  border-radius: 3px;
  line-height: 1.6;
  max-width: 82%;
}
.mock__bubble--ai { background: var(--navy); color: var(--white); }
.mock__bubble--user { background: var(--white); border: 1px solid var(--line); color: var(--muted); margin-left: auto; }
.mock__stats { display: flex; gap: 10px; margin-top: 16px; }
.mock__stat {
  flex: 1;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 2px solid var(--gold);
  border-radius: 2px;
  padding: 10px 8px;
  text-align: center;
}
.mock__stat b { display: block; font-size: 17px; color: var(--navy); }
.mock__stat span { font-size: 11px; color: var(--muted); }

/* ---------- 痛点卡片 ---------- */
.grid { display: grid; gap: 24px; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.pain-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--navy);
  border-radius: 3px;
  padding: 28px 24px;
  transition: border-color 0.2s;
}
.pain-card:hover { border-top-color: var(--gold); }
.pain-card__icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--gold);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-dark);
  margin-bottom: 18px;
}
.pain-card h3 { font-size: 17px; color: var(--navy); margin-bottom: 10px; }
.pain-card p { font-size: 14px; color: var(--muted); }

.section-turn {
  margin-top: 44px;
  padding: 22px 30px;
  border-left: 3px solid var(--gold);
  background: var(--white);
  font-size: 17px;
  color: var(--navy);
  font-weight: 700;
  border-radius: 0 3px 3px 0;
}

/* ---------- 产品卡片 ---------- */
.product-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 30px 26px;
  transition: border-color 0.2s, transform 0.2s;
}
.product-card:hover { border-color: var(--gold); transform: translateY(-3px); }
.product-card__icon {
  width: 52px;
  height: 52px;
  background: var(--navy);
  color: var(--gold);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.product-card h3 { font-size: 19px; color: var(--navy); margin-bottom: 10px; }
.product-card p { font-size: 14.5px; color: var(--muted); flex: 1; }
.product-card__link {
  display: inline-block;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 700;
  color: var(--gold-dark);
}
.product-card__link:hover { color: var(--navy); }
.product-card--custom {
  border-style: dashed;
  border-color: var(--gold);
  background: var(--white);
}
.product-card--custom .product-card__icon { background: var(--gold); color: var(--navy); }

/* ---------- 三栏对比 ---------- */
.compare-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.compare-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 32px 28px;
}
.compare-card--us {
  background: var(--navy);
  color: var(--white);
  border: 1px solid var(--gold);
  position: relative;
}
.compare-card__label {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--muted);
  margin-bottom: 10px;
}
.compare-card--us .compare-card__label { color: var(--gold); }
.compare-card h3 { font-size: 20px; margin-bottom: 6px; color: var(--navy); }
.compare-card--us h3 { color: var(--white); }
.compare-card__tag { font-size: 14px; color: var(--muted); margin-bottom: 20px; }
.compare-card--us .compare-card__tag { color: rgba(255, 255, 255, 0.75); }
.compare-card ul li {
  position: relative;
  padding: 9px 0 9px 24px;
  font-size: 14.5px;
  color: var(--ink);
  border-bottom: 1px dashed var(--line);
}
.compare-card--us ul li { color: rgba(255, 255, 255, 0.9); border-bottom-color: var(--line-dark); }
.compare-card ul li:last-child { border-bottom: 0; }
.compare-card ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 16px;
  width: 8px;
  height: 8px;
  background: var(--line);
}
.compare-card--us ul li::before { background: var(--gold); }

/* ---------- 案例卡片 ---------- */
.case-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.case-card__head {
  background: var(--navy);
  color: var(--white);
  padding: 20px 24px;
}
.case-card__head h3 { font-size: 18px; }
.case-card__head p { font-size: 13px; color: rgba(255, 255, 255, 0.65); margin-top: 4px; }
.case-card__body { padding: 22px 24px; flex: 1; display: flex; flex-direction: column; }
.case-card__body h4 {
  font-size: 13px;
  color: var(--gold-dark);
  letter-spacing: 2px;
  margin-bottom: 6px;
}
.case-card__body p { font-size: 14px; color: var(--ink); margin-bottom: 14px; }
.case-metrics { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.case-metrics span {
  flex: 1 1 calc(33.33% - 8px);
  min-width: 80px;
  background: var(--ivory);
  border: 1px solid var(--line);
  border-radius: 2px;
  text-align: center;
  padding: 10px 6px;
  font-size: 12px;
  color: var(--muted);
}
.case-metrics b { display: block; font-size: 18px; color: var(--navy); }
.case-card__link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 700;
  color: var(--gold-dark);
}
.case-card__link:hover { color: var(--navy); }
.note-small { font-size: 12.5px; color: var(--muted); text-align: center; margin-top: 26px; }

/* ---------- 五步流程横向步骤条 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 0 14px;
  text-align: center;
}
.step + .step::before {
  /* 步骤间连接线 */
  content: "";
  position: absolute;
  left: -28px;
  top: 27px;
  width: 56px;
  height: 2px;
  background: var(--gold);
}
.step__no {
  counter-increment: step;
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border: 2px solid var(--gold);
  border-radius: 2px;
  background: var(--navy);
  color: var(--gold);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.step__no::after { content: counter(step); }
.step h3 { font-size: 17px; color: var(--white); margin-bottom: 4px; }
.step .step__time { font-size: 12.5px; color: var(--gold); letter-spacing: 1px; margin-bottom: 8px; }
.step p { font-size: 13px; color: rgba(255, 255, 255, 0.65); }
.steps-note {
  margin-top: 44px;
  text-align: center;
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.75);
  border: 1px dashed var(--line-dark);
  border-radius: 3px;
  padding: 18px 26px;
}

/* 流程页：竖向详述 */
.process-detail { display: grid; gap: 24px; }
.process-item {
  display: grid;
  grid-template-columns: 190px 1fr;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
}
.process-item__side {
  background: var(--navy);
  color: var(--white);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.process-item__side .step__no { margin: 0 0 12px; background: transparent; }
.process-item__side h3 { font-size: 18px; color: var(--white); }
.process-item__side .step__time { color: var(--gold); font-size: 13px; letter-spacing: 1px; }
.process-item__main { padding: 26px 30px; }
.process-item__main h4 {
  font-size: 14px;
  color: var(--gold-dark);
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.process-item__main ul { margin-bottom: 18px; }
.process-item__main ul li {
  position: relative;
  padding: 5px 0 5px 20px;
  font-size: 14.5px;
}
.process-item__main ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 14px;
  width: 7px;
  height: 7px;
  background: var(--gold);
}
.process-item__main ul:last-child { margin-bottom: 0; }

/* ---------- 关于速览 / 关于页 ---------- */
.about-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 52px;
  align-items: center;
}
.about-text p { color: var(--muted); margin-bottom: 16px; }
.about-visual {
  background: var(--navy);
  border: 1px solid var(--line-dark);
  border-radius: 4px;
  padding: 34px 30px;
  color: var(--white);
}
.about-visual__mark { font-size: 15px; color: var(--gold); letter-spacing: 3px; margin-bottom: 14px; }
.about-visual h3 { font-size: 22px; margin-bottom: 14px; }
.about-visual p { font-size: 14px; color: rgba(255, 255, 255, 0.72); }

.promise-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 30px 26px;
}
.promise-card__no {
  font-size: 34px;
  font-weight: 700;
  color: var(--gold);
  font-family: Georgia, serif;
  margin-bottom: 10px;
}
.promise-card h3 { font-size: 19px; color: var(--navy); margin-bottom: 10px; }
.promise-card p { font-size: 14px; color: var(--muted); }

/* 时间轴 */
.timeline { position: relative; max-width: 720px; margin: 0 auto; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--gold);
}
.timeline li { position: relative; padding: 0 0 30px 26px; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--navy);
  border: 2px solid var(--gold);
  border-radius: 2px;
}
.timeline h3 { font-size: 16px; color: var(--navy); }
.timeline p { font-size: 14px; color: var(--muted); }

/* ---------- CTA 横幅 / 留资区（无表单） ---------- */
.cta-band {
  background: var(--navy);
  color: var(--white);
  padding: 68px 0;
  border-top: 3px solid var(--gold);
}
.cta-band__inner {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 44px;
  align-items: center;
}
.cta-band h2 { font-size: 28px; margin-bottom: 14px; }
.cta-band h2 em { font-style: normal; color: var(--gold); }
.cta-band p { color: rgba(255, 255, 255, 0.75); margin-bottom: 26px; max-width: 560px; }
.cta-aside {
  border: 1px dashed rgba(255, 255, 255, 0.35);
  border-radius: 3px;
  padding: 26px;
  text-align: center;
}
.cta-aside__qr {
  width: 160px;
  height: 160px;
  margin: 0 auto 14px;
  border: 2px dashed rgba(255, 255, 255, 0.45);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  padding: 10px;
}
.cta-aside__qr-img {
  width: 160px;
  height: 160px;
  margin: 0 auto 14px;
  border-radius: 3px;
  display: block;
  background: #fff;
}
.contact-qr__img {
  width: 160px;
  height: 160px;
  margin: 0 auto 14px;
  border-radius: 3px;
  display: block;
  background: #fff;
}
.cta-aside__tel { font-size: 22px; font-weight: 700; color: var(--gold); letter-spacing: 1px; }
.cta-aside__label { font-size: 13px; color: rgba(255, 255, 255, 0.6); margin-top: 6px; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.72);
  padding: 52px 0 28px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
  gap: 40px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line-dark);
}
.footer-grid h4 {
  color: var(--white);
  font-size: 15px;
  margin-bottom: 16px;
}
.footer-grid p, .footer-grid li { font-size: 13.5px; line-height: 2; }
.footer-grid a:hover { color: var(--gold); }
.footer-bottom {
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  justify-content: space-between;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- 子页面通用 Hero ---------- */
.page-hero {
  background: var(--navy);
  color: var(--white);
  padding: 60px 0 56px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.3;
}
.page-hero .container { position: relative; }
.breadcrumb { font-size: 13px; color: rgba(255, 255, 255, 0.55); margin-bottom: 20px; }
.breadcrumb a { color: rgba(255, 255, 255, 0.55); }
.breadcrumb a:hover { color: var(--gold); }
.page-hero h1 {
  font-size: 34px;
  line-height: 1.4;
  font-weight: 700;
  margin-bottom: 14px;
  max-width: 720px;
}
.page-hero h1 em { font-style: normal; color: var(--gold); }
.page-hero p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.78);
  max-width: 680px;
  margin-bottom: 28px;
}
.page-hero .btn { margin-right: 12px; }

/* ---------- 产品页组件 ---------- */
/* 工作原理：带箭头的横向流程条 */
.principle {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  align-items: stretch;
}
.principle__step {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 30px 26px;
  margin-right: 40px;
}
.principle__step:last-child { margin-right: 0; }
.principle__step::after {
  content: "";
  position: absolute;
  right: -28px;
  top: 50%;
  margin-top: -8px;
  width: 0;
  height: 0;
  border-left: 16px solid var(--gold);
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
}
.principle__step:last-child::after { display: none; }
.principle__no {
  display: inline-block;
  width: 34px;
  height: 34px;
  background: var(--navy);
  color: var(--gold);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  margin-bottom: 14px;
}
.principle__step h3 { font-size: 17px; color: var(--navy); margin-bottom: 8px; }
.principle__step p { font-size: 14px; color: var(--muted); }

/* 功能清单分组 */
.feature-group {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 28px 26px;
}
.feature-group h3 {
  font-size: 17px;
  color: var(--navy);
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
}
.feature-group ul li {
  position: relative;
  padding: 7px 0 7px 22px;
  font-size: 14.5px;
  color: var(--ink);
}
.feature-group ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 16px;
  width: 7px;
  height: 7px;
  background: var(--gold);
}

/* 版本卡片（只讲功能差异） */
.version-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
}
.version-card--hot { border: 2px solid var(--gold); position: relative; }
.version-card__badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--navy);
  font-size: 12.5px;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 2px;
  letter-spacing: 1px;
}
.version-card h3 { font-size: 19px; color: var(--navy); margin-bottom: 4px; text-align: center; }
.version-card .version-card__tag {
  text-align: center;
  font-size: 13px;
  color: var(--gold-dark);
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.version-card ul { flex: 1; margin-bottom: 20px; }
.version-card ul li {
  position: relative;
  padding: 7px 0 7px 22px;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px dashed var(--line);
}
.version-card ul li:last-child { border-bottom: 0; }
.version-card ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 16px;
  width: 7px;
  height: 7px;
  background: var(--navy);
}
.version-card .btn { width: 100%; }

/* 适用场景 / 方向卡片 */
.scene-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 26px 24px;
}
.scene-card__icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--gold);
  border-radius: 3px;
  color: var(--gold-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.scene-card h3 { font-size: 16.5px; color: var(--navy); margin-bottom: 8px; }
.scene-card p { font-size: 14px; color: var(--muted); }

/* 案例页叙事块 */
.case-story {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  margin-bottom: 36px;
  overflow: hidden;
}
.case-story__head {
  background: var(--navy);
  color: var(--white);
  padding: 26px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.case-story__head h2 { font-size: 21px; }
.case-story__head h2 em { font-style: normal; color: var(--gold); }
.case-story__head span { font-size: 13px; color: rgba(255, 255, 255, 0.6); letter-spacing: 1px; }
.case-story__body { padding: 32px; }
.case-story__body h3 {
  font-size: 15px;
  color: var(--gold-dark);
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.case-story__body h3:not(:first-child) { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); }
.case-story__body p, .case-story__body li { font-size: 15px; color: var(--ink); }
.case-story__body ul li {
  position: relative;
  padding: 5px 0 5px 22px;
  list-style: none;
}
.case-story__body ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 14px;
  width: 7px;
  height: 7px;
  background: var(--gold);
}
.case-metrics--wide { margin: 6px 0 4px; }
.case-metrics--wide span { flex: 1 1 140px; }
.case-quote {
  margin-top: 22px;
  background: var(--ivory);
  border-left: 3px solid var(--gold);
  border-radius: 0 3px 3px 0;
  padding: 18px 24px;
  font-size: 15.5px;
  color: var(--navy);
  font-weight: 700;
}

/* 占位区块（真实案例预留） */
.placeholder-block {
  border: 2px dashed var(--line);
  border-radius: 3px;
  padding: 40px;
  text-align: center;
  color: var(--muted);
  font-size: 14.5px;
}
.placeholder-block b { display: block; font-size: 17px; color: var(--navy); margin-bottom: 8px; }

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: start;
}
.contact-list { background: var(--white); border: 1px solid var(--line); border-radius: 3px; }
.contact-item {
  display: flex;
  gap: 18px;
  padding: 24px 28px;
  border-bottom: 1px solid var(--line);
}
.contact-item:last-child { border-bottom: 0; }
.contact-item__icon {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  background: var(--navy);
  color: var(--gold);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-item h3 { font-size: 15px; color: var(--navy); margin-bottom: 4px; }
.contact-item p { font-size: 14.5px; color: var(--muted); }
.contact-qr {
  background: var(--navy);
  color: var(--white);
  border-radius: 3px;
  padding: 34px 30px;
  text-align: center;
}
.contact-qr h3 { font-size: 19px; margin-bottom: 8px; }
.contact-qr > p { font-size: 13.5px; color: rgba(255, 255, 255, 0.65); margin-bottom: 22px; }
.contact-qr__box {
  width: 160px;
  height: 160px;
  margin: 0 auto 14px;
  border: 2px dashed rgba(255, 255, 255, 0.45);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  padding: 10px;
}
.contact-qr__note { font-size: 12.5px; color: rgba(255, 255, 255, 0.55); }
.trust-notes { margin-top: 22px; }
.trust-notes li {
  position: relative;
  padding: 6px 0 6px 24px;
  font-size: 13.5px;
  color: var(--muted);
}
.trust-notes li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 14px;
  width: 7px;
  height: 7px;
  background: var(--gold);
}

/* 定制页：评估流程条 */
.assess-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.assess-step {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 24px 22px;
  margin-right: 36px;
}
.assess-step:last-child { margin-right: 0; }
.assess-step::after {
  content: "";
  position: absolute;
  right: -25px;
  top: 50%;
  margin-top: -7px;
  border-left: 14px solid var(--gold);
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
}
.assess-step:last-child::after { display: none; }
.assess-step h3 { font-size: 16px; color: var(--navy); margin-bottom: 8px; }
.assess-step h3 span { color: var(--gold-dark); margin-right: 6px; }
.assess-step p { font-size: 13.5px; color: var(--muted); }

/* ---------- 价格展示 ---------- */
/* 版本卡片：金色大号价格 */
.version-card .version-card__tag { margin-bottom: 8px; }
.version-card__price {
  text-align: center;
  font-size: 30px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--gold);
  margin: 0 0 16px;
}
.version-card__price small {
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
  margin-left: 2px;
}
/* 原价划线 */
.price-old {
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
  text-decoration: line-through;
}
.version-card__orig {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  margin: -10px 0 18px;
}
/* 定制页方向卡片价格行 */
.scene-card__price {
  margin-top: 14px;
  font-size: 21px;
  font-weight: 700;
  color: var(--gold);
}
.scene-card__price small {
  font-size: 12.5px;
  font-weight: 400;
  color: var(--muted);
  margin-left: 4px;
}
/* 首页产品卡起步价（不抢视觉） */
.product-card__price {
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}
/* 流程页诊断费说明（小字） */
.diag-price {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--gold-dark);
  border-left: 2px solid var(--gold);
  padding-left: 10px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .compare-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(5, 1fr); gap: 18px 0; }
  .step + .step::before { display: none; }
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .about-split { grid-template-columns: 1fr; }
  .cta-band__inner { grid-template-columns: 1fr; }
  .principle { grid-template-columns: 1fr; gap: 18px; }
  .principle__step { margin-right: 0; }
  .principle__step::after { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .assess-steps { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .assess-step { margin-right: 0; }
  .assess-step::after { display: none; }
  .process-item { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 52px 0; }
  .section-title { font-size: 24px; }
  .hero { padding: 48px 0; }
  .hero__tag { font-size: 14px; letter-spacing: 2px; padding: 6px 14px; }
  .hero__title { font-size: 27px; }
  .page-hero h1 { font-size: 25px; }
  .page-hero p { font-size: 15px; }
  .grid--4, .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 26px; }
  .step { display: flex; gap: 16px; text-align: left; padding: 0; }
  .step__no { margin: 0; flex: 0 0 56px; }
  .case-story__body { padding: 24px 20px; }
  .assess-steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }

  /* 移动端导航折叠 */
  .nav { height: 60px; }
  .nav__toggle { display: flex; }
  .nav__menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy-deep);
    border-bottom: 1px solid var(--line-dark);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 18px;
    max-height: 80vh;
    overflow-y: auto;
  }
  .nav__menu.is-open { display: flex; }
  .nav__link { padding: 13px 22px; }
  .nav__link.is-active::after { display: none; }
  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    border: 0;
    border-top: 1px solid var(--line-dark);
    border-radius: 0;
    margin: 0;
  }
  .dropdown a {
    color: rgba(255, 255, 255, 0.72);
    border-bottom: 0;
    padding: 9px 22px 9px 38px;
    font-size: 14px;
  }
  .dropdown a:hover { background: transparent; color: var(--gold); }
  .nav__cta { margin: 12px 22px 0; }
  .nav__cta .btn { width: 100%; }
}